0x Alpha: The Mystery AI Model Everyone Is Testing for Free
Ox Alpha — often searched as 0x Alpha — appeared anonymously on OpenRouter on 20 August 2026: a free frontier-class reasoning model with a million-token context window, video input and a viral claim to beat paid rivals at coding. This guide covers the verified specification sheet, the 10-task benchmark caveats, the serving-layer forensics pointing to Zhipu AI, the four previous stealth models that were all claimed by Chinese labs, what the free week really costs in data terms on each of the two access routes, and a defensive pilot plan for businesses that want the free market intelligence without handing an anonymous operator their company data.